DE638408C - Device for preventing the fogging of windshields, in particular on motor vehicles - Google Patents
Device for preventing the fogging of windshields, in particular on motor vehiclesInfo
- Publication number
- DE638408C DE638408C DED67449D DED0067449D DE638408C DE 638408 C DE638408 C DE 638408C DE D67449 D DED67449 D DE D67449D DE D0067449 D DED0067449 D DE D0067449D DE 638408 C DE638408 C DE 638408C
- Authority
- DE
- Germany
- Prior art keywords
- nozzle
- kept clear
- windshields
- point
- fogging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/54—Cleaning windscreens, windows or optical devices using gas, e.g. hot air
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jet Pumps And Other Pumps (AREA)
Description
<-;■*&' ■<-; ■ * & '■
Die Erfindung bezieht sich auf eine Einrichtung zum Verhindern des Beschlagens von Windschutzscheiben o. dgl., insbesondere an Kraftfahrzeugen.The invention relates to a device for preventing fogging Windshields or the like, in particular on motor vehicles.
Zu diesem Zweck ist gemäß der Erfindung die der Entlüftung des Wageninnern dienende Saugdüse in der Nähe der klar zu haltenden Stelle an der Scheibe derart angeordnet, daß die angesaugte Luft an der klar zu haltenden ίο Stelle vorbeistreicht oder doch wenigstens dort eine Zone bewegter Luft bildet.For this purpose, according to the invention, the ventilation of the interior of the car is used Suction nozzle arranged in the vicinity of the point to be kept clear on the disc in such a way that the sucked in air sweeps past the place to be kept clear ίο or at least at least there forms a zone of moving air.
Man kann hierbei die Entlüftungsdüse gegen das Karosserieinnere durch eine zusätzliche Scheibe abschirmen, die sich über die klar zu haltende Stelle erstreckt. Die klar zu haltende Schieibe und die Zusatzscheibe bilden einen vom Saugzug der Entlüfterdüse beherrschten Spalt.You can use an additional vent nozzle against the inside of the body Shield the pane that extends over the area to be kept clear. The one to be kept clear The disk and the additional disk form one dominated by the induced draft of the ventilation nozzle Gap.
Die Luft durch die Düse kann weiter gemaß der Erfindung dadurch abgesaugt werden, daß die Entlüfterdüse mit einer ejektorartig mit dem Auspuffrohr zusammenwirkenden Saugeinrichtung in Verbindung steht.The air through the nozzle can be sucked out further according to the invention, that the vent nozzle interacts with an ejector-like with the exhaust pipe Suction device is in connection.
Die Zeichnung gibt rein grundsätzlich ein Ausführungsbeispiel der neuen Einrichtung wieder. Dabei istThe drawing basically gives an embodiment of the new device again. It is
Abb. ι ein Schnitt durch die Gesamtanordnung, Fig. Ι a section through the overall arrangement,
Abb. 2 eine Draufsicht der Scheibe mit der Zusatzscheibe.Fig. 2 is a plan view of the disk with the additional disk.
Die Windschutzscheibe ß ist im Rahmen &The windshield ß is in the frame &
gefaßt. An der Stelle der Scheibe a, welche klar bleiben soll, ist in einigem Abstand von ihr in an sich bekannter Weise eine zweite Scheibe i angebracht. An der unteren Seite des durch die Scheiben α und i gebildeten .collected. At the point of the disk a, which should remain clear, a second disk i is attached at some distance from it in a manner known per se. On the lower side of the formed by the disks α and i .
Hohlraumes mündet eine Saugdüse k. An diese schließt sich die Absaugleitung m, in welche eineEjektordüse 0 eingebaut ist, durch welche aus dem Auspufftopf η die Auspuffgase abströmen, die in dem Rohr m, in der Düse k und im Zwischenraum zwischen den beiden Scheiben λ und / einen Saugluftstrom erzeugen. A suction nozzle k opens into the cavity. This is followed by the suction line m, in which an ejector nozzle 0 is installed, through which the exhaust gases flow out of the muffler η and generate a suction air flow in the pipe m, in the nozzle k and in the space between the two disks λ and /.
Das Absaugen kann selbstverständlich auch in irgendeiner anderen Weise bewirkt werden, z. B. durch Anschluß an das Unterdruckrohr des Vergasers des Motors. Es kann auch die Scheibe I wegfallen; in diesem Fall wird dann der der Düsenmündung benachbarte Teil der Scheiben, wenn in der Düse Unterdruck herrscht, vom Niederschlag frei bleiben.The suction can of course also be effected in some other way, e.g. B. by connection to the vacuum pipe of the carburetor of the engine. Disk I can also be omitted; in this case the part of the disks adjacent to the nozzle orifice will remain free of precipitation when there is negative pressure in the nozzle.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED67449D DE638408C (en) | Device for preventing the fogging of windshields, in particular on motor vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED67449D DE638408C (en) | Device for preventing the fogging of windshields, in particular on motor vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
DE638408C true DE638408C (en) | 1936-11-14 |
Family
ID=7059719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED67449D Expired DE638408C (en) | Device for preventing the fogging of windshields, in particular on motor vehicles |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE638408C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE872460C (en) * | 1949-03-24 | 1953-04-02 | Vdo Schindling | Pointer measuring device for motor vehicles |
US2659942A (en) * | 1948-03-25 | 1953-11-24 | Lauren E Iverson | Windshield warmer |
-
0
- DE DED67449D patent/DE638408C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2659942A (en) * | 1948-03-25 | 1953-11-24 | Lauren E Iverson | Windshield warmer |
DE872460C (en) * | 1949-03-24 | 1953-04-02 | Vdo Schindling | Pointer measuring device for motor vehicles |
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